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The structure of finite self-assembling systems depends sensitively on the number of constituent building blocks. Recently, it was demonstrated that hard sphere-like colloidal particles show a magic number effect when confined in spherical…

The nuclear shell model is a benchmark for the description of the structure of atomic nuclei. The magic numbers associated with closed shells have long been assumed to be valid across the whole nuclear chart. Investigations in recent years…

Popular Physics · Physics 2010-06-15 R. Kruecken

Cells possess non-membrane-bound bodies, many of which are now understood as phase-separated condensates. One class of such condensates is composed of two polymer species, where each consists of repeated binding sites that interact in a…

Biological Physics · Physics 2020-03-31 Bin Xu , Guanhua He , Benjamin G. Weiner , Pierre Ronceray , Yigal Meir , Martin C. Jonikas , Ned S. Wingreen

Motivated by recent experiments on colloidal systems with competing attractive and repulsive interactions, we simulate a two-dimensional system of colloids with competing interactions that can undergo fragmentation. In the absence of any…

Soft Condensed Matter · Physics 2008-11-26 C. J. Olson Reichhardt , C. Reichhardt , A. R. Bishop

In nuclear physics a magic number is defined as the nucleon number, which is separated by a significantly large single-particle energy gap from the next nucleon. Magic numbers define the nuclear shells, which are considered to be active,…

Nuclear Theory · Physics 2019-09-04 Andriana Martinou , Dennis Bonatsos

Magic numbers lie at the heart of nuclear structure, reflecting enhanced stability in nuclei with closed shells. While the emergence of magic numbers beyond 20 is commonly attributed to strong spin-orbit coupling, the microscopic origin of…

Nuclear Theory · Physics 2026-02-23 C. R. Ding , C. C. Wang , J. M. Yao , H. Hergert , H. Z. Liang , S. Bogner

The distribution of the sizes of clusters is not continuous, but rather has local maxima. The numbers of atoms of those maxima distribution is called magic numbers. Two methods of determining magic numbers are firstly introduced, followed…

Materials Science · Physics 2014-11-05 Siwei Luo

There has long been a discrepancy between the size distributions of Ar$_n^+$ clusters measured by different groups regarding whether or not magic numbers appear at sizes corresponding to the closure of icosahedral (sub-)shells. We show that…

Atomic and Molecular Clusters · Physics 2019-12-04 Michael Gatchell , Paul Martini , Lorenz Kranabetter , Bilal Rasul , Paul Scheier

Studies of random close packing of spheres have advanced our knowledge about the structure of systems such as liquids, glasses, emulsions, granular media, and amorphous solids. When these systems are confined their structural properties…

Soft Condensed Matter · Physics 2009-12-17 Kenneth W. Desmond , Eric R. Weeks

By studying the structures of clusters bound by a model potential that favours polytetrahedral order, we find a previously unknown series of `magic numbers' (i.e. sizes of special stability) whose polytetrahedral structures are…

Condensed Matter · Physics 2007-05-23 Jonathan Doye , David Wales

We present a new theoretical framework for modelling the cluster growing process. Starting from the initial tetrahedral cluster configuration, adding new atoms to the system and absorbing its energy at each step, we find cluster growing…

Atomic and Molecular Clusters · Physics 2007-05-23 A. Koshelev , A. Shutovich , Il. A. Solov'yov , A. V. Solov'yov , W. Greiner

The existence of bubble nuclei identified by the central depletion in nucleonic density is studied for the conventional magic N (Z) $=$ 8, 20, 28, 40, 50, 82, 126 isotones (isotopes) and recently speculated magic N $=$ 164, 184, 228…

Nuclear Theory · Physics 2018-12-26 G. Saxena , M. Kumawat , M. Kaushik , S. K. Jain , Mamta Aggarwal

The main purpose of the present manuscript is to review the structural evolution along the isotonic and isotopic chains around the "traditional" magic numbers 8; 20; 28; 50; 82 and 126. The exotic regions of the chart of nuclides have been…

Nuclear Experiment · Physics 2008-12-18 O. Sorlin , M. -G. Porquet

It is found that various kind of shell structure which occurs at specific values of the magnetic field leads to the disappearance of the orbital magnetization for particular magic numbers of small quantum dots with an electron number $A <…

Condensed Matter · Physics 2009-10-31 W. D. Heiss , R. G. Nazmitdinov

Monodisperse spherical colloidal particles confined within emulsion droplets can crystallize into icosahedral clusters. Experimentally it was observed that a few large colloidal particles added as defects preferentially migrate to the…

Soft Condensed Matter · Physics 2026-04-29 Praveen K. Bommineni , Junwei Wang , Nicolas Vogel , Michael Engel

We review the theory behind abundance of experimentally observed nanoclusters produced in beams, aiming to understand their magic number behavior. It is shown how use of statistical physics, with certain assumptions, reduces the calculation…

Statistical Mechanics · Physics 2014-04-02 Kiamars Vafayi , Keivan Esfarjani

Creating materials with structure that is independently controllable at a range of scales requires breaking naturally occurring hierarchies. Breaking these hierarchies can be achieved via the decoupling of building block attributes from…

Soft Condensed Matter · Physics 2022-07-04 Lucia Baldauf , Erin G. Teich , Peter Schall , Greg van Anders , Laura Rossi

The calculation of a statistical measure of complexity and the Fisher-Shannon information in nuclei is carried out in this work. We use the nuclear shell model in order to obtain the fractional occupation probabilities of nuclear orbitals.…

Adaptation and Self-Organizing Systems · Physics 2009-06-18 Ricardo Lopez-Ruiz , Jaime Sanudo

Icosahedral Au clusters with three and four shells of atoms are found to deviate significantly from the commonly assumed Mackay structures. By introducing additional atoms in the surface shell and creating a vacancy in the center of the…

Computational Physics · Physics 2022-04-01 Jan Kloppenburg , Andreas Pedersen , Kari Laasonen , Miguel A. Caro , Hannes Jónsson

At low temperatures, colloidal particles with short-range attractive and long-range repulsive interactions can form various periodic microphases in bulk.In this paper, we investigate the self-assembly behaviour of colloids with competing…

Soft Condensed Matter · Physics 2023-12-12 Ningyi Li , Junhong Li , Lijingting Qing , Shicheng Ma , Yao Li , Baohui Li
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